From 0167a9bff5bafa7428ca2f4fdd85f5eabe25144c Mon Sep 17 00:00:00 2001
From: Erik Fonnesbeck <efonnes@gmail.com>
Date: Thu, 6 May 2010 02:47:06 -0600
Subject: Fix the regular expression used in filter_generate_address for OPT
 subnet so that it only matches the case intended. Ticket #571

---
 etc/inc/filter.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'etc')

diff --git a/etc/inc/filter.inc b/etc/inc/filter.inc
index 5fe7d56..829082c 100644
--- a/etc/inc/filter.inc
+++ b/etc/inc/filter.inc
@@ -1370,7 +1370,7 @@ function filter_generate_address(& $rule, $target = "source", $isnat = false) {
 		if(strstr($rule[$target]['network'], "opt")) {
 			$optmatch = "";
 			$matches = "";
-			if(preg_match("/opt([0-9]*)/", $rule[$target]['network'], $optmatch)) {
+			if(preg_match("/opt([0-9]*)$/", $rule[$target]['network'], $optmatch)) {
 				$opt_ip = $FilterIflist["opt{$optmatch[1]}"]['ip'];
 				if(!is_ipaddr($opt_ip))
 					return "";
-- 
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